10 results about "Reservoir volume" patented technology

The invention discloses a device for simulating volume fracturing of a shale reservoir. The device comprises a simulated reservoir cavity, a turnover adjusting mechanism and a pressurized liquid filling mechanism, the simulation reservoir cavity is used for carrying out a volume fracturing simulation experiment; the overturning adjusting mechanism is arranged below the simulated reservoir cavity and is used for adjusting the inclination angle between the simulated reservoir cavity and the horizontal plane; and the pressurizing and liquid filling mechanism is connected with the simulation reservoir cavity and the turnover adjusting mechanism through pipelines, and is used for providing pressure during a simulation experiment and also providing drive for the turnover adjusting mechanism. The device provided by the invention solves the technical problem that fracturing simulation of any dip angle stratums is difficult to simulate.

The present application relates to the technical field of unconventional reservoir development and drainage, and provides a hydrophilic unconventional oil horizontal well volume fracturing post-soaking time design method, which comprises the following steps: S100, evaluating reservoir wettability and determining that the reservoir is a hydrophilic reservoir; S200, establishing a horizontal well segmented cluster fracturing post-reservoir fluid seepage basic physical model and determining basic conditions of the soaking time design method; S300, determining a soaking time calculation formula based on Darcy's law and seepage velocity; S400, collecting data values of parameters of the soaking time calculation formula; and S500, substituting the data values into the soaking time calculation formula to calculate equivalent reasonable soaking time. The method can achieve the technical effect that unconventional reservoir volume fracturing horizontal wells can be opened and oil can be seen.

The invention provides a volume fracturing optimization method for improving the single well yield of a tight oil reservoir. The volume fracturing optimization method comprises the following steps that (1) well selection and layer selection are conducted according to the purpose of increasing the reservoir transformation volume; on one hand, natural fractures are relatively developed, the natural fractures are communicated through fracturing, and net-shaped fractures are achieved; the brittleness index of the reservoir is high, and rock is prone to shear slippage to form complex cracks; 2) optimizing fracturing fluid systems in a prepad fluid stage and a sand-carrying fluid stage; and (3) fracturing construction parameters are optimized. According to a conventional tight reservoir volume fracturing design method and an underground micro-seismic test result, aiming at a tight reservoir with poor reservoir physical properties, developed natural fractures and high brittleness index, the method aims at increasing the reservoir transformation volume and improving the fracture complexity, and on the basis of a conventional conventional volume fracturing large-liquid-amount, high-displacement and low-mucus design mode, the method is suitable for the volume fracturing design of the tight reservoir and the underground micro-seismic test result. And the fracturing fluid, the pumping sequence of fracturing parameters and the technological property are changed, the reservoir transformation volume is further increased, and the single well yield is increased.

The invention belongs to the technical field of petroleum and natural gas engineering, and provides a reservoir volume fracturing effect evaluation method and system, electronic equipment and a storage medium, and the method comprises the following steps: obtaining single mineral content, actual Young modulus and single mineral Young modulus in a rock sample; calculating the mineral dispersity, Young modulus difference degree and mineral adhesion degree of the rock sample according to the single mineral Young modulus of the rock sample in combination with the single mineral content and the actual Young modulus; calculating the fracture potential degree of the reservoir where the rock sample is located according to the Young modulus difference degree and the mineral adhesion degree; according to the mineral dispersity and the fracture potential degree of the reservoir, the fracture network complex index of the reservoir is calculated, and the volume fracturing effect of the reservoir is evaluated according to the fracture network complex index. The reservoir volume fracturing effect is evaluated by comprehensively considering the complexity of the natural fracture and the complexity of the fracture network formed by reservoir transformation, and the precision and accuracy of fracturing effect evaluation are improved.

The invention relates to a power assembly and a vehicle, the power assembly comprises an oil pan and a liquid storage structure, the oil pan is used for containing lubricating oil, and the liquid storage structure is provided with a liquid inlet and a liquid outlet; the power assembly is configured to enable lubricating oil to be suitable for being conveyed to the liquid inlet of the liquid storage structure from the oil pan and suitable for being conveyed to the oil pan from the liquid outlet of the liquid storage structure. The oil pan is configured in the mode that the liquid storage amount of lubricating oil in the oil pan can be adjusted according to requirements. According to the technical scheme, the power assembly can increase the liquid storage amount of the lubricating oil in the liquid storage structure and reduce the liquid storage amount of the lubricating oil in the oil pan according to requirements so as to reduce oil stirring loss, or reduce the liquid storage amount of the lubricating oil in the liquid storage structure and increase the liquid storage amount of the lubricating oil in the oil pan so as to guarantee lubrication and cooling of the power assembly.

The invention relates to the technical field of reservoir logging evaluation, in particular to a reservoir water saturation evaluation method based on a volume model, electronic equipment and a storage medium, and the method comprises the following steps: determining shale resistivity, formation water resistivity, reservoir shale content and reservoir porosity; and substituting the shale resistivity, the formation water resistivity, the reservoir shale content and the reservoir porosity into the reservoir volume model response equation to obtain the relative volume of the porosity occupied by the formation water and the relative volume of the porosity occupied by the formation oil, and determining the water saturation of the reservoir.

The invention discloses a petroleum reservoir porosity dynamic analysis method based on logging-while-drilling data, belongs to the field of petroleum and natural gas exploration and development, and is suitable for complex well types such as horizontal wells and the like. The method comprises the following steps: firstly, constructing a logging-while-drilling data real-time acquisition subsystem to complete multi-source data acquisition, transmission, analysis and preprocessing; calculating an initial porosity and a specific surface by combining a capillary bundle model, modeling, and calculating reservoir volume strain and sand migration parameters at the same time; fusing the parameters to construct a dynamic porosity model, solving by using a Newton iteration method, and further constructing a porosity-depth-time three-dimensional dynamic model and visualizing the porosity-depth-time three-dimensional dynamic model; and finally, constructing an analysis system containing multiple modules, wherein the modules interact through the data service middleware. According to the method, the porosity can be dynamically analyzed in real time, the calculation precision is improved, changes are visually presented, and data interaction and application convenience is guaranteed.

This invention discloses a method and system for spatializing flood storage capacity based on remote sensing data, belonging to the field of flood storage capacity spatialization technology. The method includes: determining spatial raster data of rainfall, runoff, and lake / reservoir volumes for the vegetation ecosystem of the target area to be evaluated, based on remote sensing data; and then determining the spatialized flood storage capacity of the target area based on these data. This invention utilizes the rasterizable nature of remote sensing data to achieve the purpose of spatialized calculation of flood storage capacity.

The invention discloses a method and device for determining oil reservoir reserves by using well bottom fluid density, and the method comprises the steps: determining the relation between the original volume of an oil reservoir and the volume of crude oil and water under the initial condition of the oil reservoir; based on a material balance equation, a well bottom multiphase fluid density model is established according to the relation between the original oil reservoir volume and the crude oil volume and the water volume; when the oil reservoir pressure is higher than the bubble point pressure, relevant parameters of at least two tests are obtained; and according to the related parameters and the well bottom multiphase fluid density model, determining the oil reservoir reserves.

The invention belongs to the technical field of hydraulic engineering, and particularly relates to a reservoir volume calculation model construction, which comprises the following steps: acquiring contour line data and elevation point data in a reservoir topographic map; constructing a continuous digital elevation surface function through interpolation operation; calculating a second derivative of each point in the function to form a Hessian matrix, converting the surface curved surface structure information into a positive definite metric tensor of each node through a mapping relation, and determining the size and direction of an ideal triangle in a hyperbolic space according to the positive definite metric tensor, so as to complete anisotropic Delaunay triangulation. Calculating the volume below the highest water level of the reservoir in an integral mode; according to the method, key landform features can be accurately captured and restored by using a smaller number of triangles, so that the speed of integral calculation of the storage capacity is remarkably improved. The method is especially suitable for reservoir capacity calculation of reservoirs with complex terrains. The invention also provides a non-transitory readable recording medium storing the program of the method and a system comprising the medium, and the program can be called through a processing circuit to execute the method.